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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSH94ID

Name: TSH94ID
Brand: STMicroelectronics
SKU: TSH94ID
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSH94ID

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: TSH94ID.pdf

Description:: IC OPAMP GP 4 CIRCUIT 16SO

Quantity:: RFQ Add To RFQ list

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Inventory:3,048

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Product details

Overview

TSH94ID from STMicroelectronics is a quad high-speed, low-power operational amplifier with dual independent standby control (STANDBY 1 for op-amp 2, STANDBY 2 for op-amp 3), 150 MHz gain-bandwidth product, 110 V/µs slew rate, and 4.5 mA per amplifier supply current. It delivers video-grade performance: 0.03% differential gain, 0.07° differential phase, and 0.1 dB gain flatness up to 6 MHz at 10 dB gain - optimized for RGB/YUV signal buffering in analog video front-ends.

For engineers reviewing the TSH94ID datasheet, TSH94ID pinout, TSH94ID application, or TSH94ID equivalent, key selection criteria include dual standby logic compatibility (V_STBY = V_CC+ − 1.6 V typ), SO-16 package thermal performance (−40°C to +125°C), 600 Ω/150 Ω load drive capability, and unity-gain stability without external compensation.

Technical Context

The TSH94ID integrates four fully independent high-speed amplifiers sharing common ±5 V (7–12 V total) dual supplies, each with rail-to-rail output swing (±3.6 V into 600 Ω) and 4.2 nV/√Hz input voltage noise. Its internal architecture supports simultaneous active/standby operation across channels - e.g., op-amps 1 & 4 remain active while op-amp 2 enters low-consumption high-impedance state via STANDBY 1.

Standby mode transitions occur in 200 ns (t_on/t_off), with leakage currents limited to 20 pA (I_OL, I_IL) and standby threshold defined relative to V_CC+ (V_STBY = V_CC+ − 1.6 V typ). Channel separation exceeds 65 dB at 1–10 MHz, enabling multiplexed video routing without crosstalk degradation.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain-bandwidth product	150 MHz - enables stable 10× closed-loop gain up to 15 MHz with 0.1 dB flatness to 6 MHz
Slew rate	110 V/µs - supports full-swing 1080i video signals (2.5 Vpp, 75 MHz fundamental) without distortion
Supply current per amp	4.5 mA - allows quad-channel operation at ≤18 mA total, critical for thermally constrained set-top-box PCBs
Differential gain/phase	0.03% / 0.07° - meets ITU-R BT.601 broadcast video fidelity requirements for SD/HD component outputs
Input voltage noise	4.2 nV/√Hz - preserves SNR >72 dB in 20 kHz audio paths when used as line driver
Common-mode rejection	80 dB min - rejects power-supply ripple and ground bounce in multi-amp video signal chains
Output short-circuit current	±40 mA - drives 150 Ω broadcast loads (e.g., coaxial cable termination) without foldback

Pinout & Package

Package: SO-16 (Plastic micropackage), ECOPACK® compliant, 9.9 mm × 3.9 mm body, 1.27 mm pitch, 1.75 mm height. Rated for −40°C to +125°C operating temperature.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 13	Inverting input (AMP1–AMP4)	High-impedance node (15 μA max bias current); requires matched trace lengths to minimize video crosstalk
2, 6, 10, 14	Non-inverting input (AMP1–AMP4)	DC-coupled reference point; common-mode range extends to V_CC− + 2 V and V_CC+ − 1 V
3, 7, 11, 15	Output (AMP1–AMP4)	Rail-to-rail swing (±3.6 V into 600 Ω); high-impedance in standby mode (20 pA leakage)
4, 16	V_CC+ (positive supply)	Accepts 7–12 V; bypass with 10 μF + 10 nF capacitors per supply pin per layout guidelines
8	STANDBY 1 control	Logic input for op-amp 2; high = standby (high-Z output, reduced current); threshold = V_CC+ − 1.6 V
12	STANDBY 2 control	Logic input for op-amp 3; independent of STANDBY 1; same threshold and timing (200 ns transition)
11	V_CC− (negative supply)	Ground-referenced for single-supply use; supports split-rail ±5 V operation

Key Features

Feature	Design Value
Dual independent standby control	Enables dynamic power gating of individual amplifiers (AMP2/AMP3) without affecting AMP1/AMP4 performance or stability
Unity-gain stable	Operates without external compensation components - reduces BOM count and PCB area in video line drivers
600 Ω / 150 Ω load specification	Guarantees video performance (gain flatness, differential phase) into standard broadcast impedance loads
Low offset voltage	3 mV max - minimizes DC error accumulation in multi-stage RGB signal chains (e.g., DAC → buffer → connector)
High channel separation	65 dB at 1–10 MHz - prevents luminance/chrominance crosstalk in composite Y/C or S-video applications

Applications

RGB Video Line Driver

Component Video Buffer (Y/Pb/Pr)

Use Scenario: Driving three parallel RGB signals from a graphics processor to an analog VGA monitor or projector.

IC Role / Device Role / Timing Role: Quad op-amp configured as three unity-gain buffers (AMP1–AMP3) and one spare (AMP4) for sync or auxiliary signal; STANDBY pins unused.

Use Value: Maintains 0.03% differential gain across all channels, ensuring color fidelity and eliminating hue shifts in high-resolution displays.

Use Scenario: Buffering Y, Pb, and Pr component video outputs from a DVD player to a home theater receiver.

IC Role / Device Role / Timing Role: AMP1–AMP3 serve as isolated Y/Pb/Pr drivers; AMP4 implements composite sync clamping or DC restoration.

Use Value: 6 MHz 0.1 dB gain flatness preserves edge sharpness and chroma resolution in 1080i content without post-processing.

Set-Top Box Video Multiplexer

Audio Line Driver

Use Scenario: Switching between HDMI-to-analog converter output and legacy AV port in digital cable boxes.

IC Role / Device Role / Timing Role: AMP1/AMP2 active as primary video path; AMP3 placed in STANDBY 2 during idle to reduce system power by 4.5 mA.

Use Value: 200 ns standby wake-up ensures glitch-free video switching during channel changes - no visible black flash or sync loss.

Use Scenario: Driving stereo line-level audio (2 Vrms) from a media processor to consumer audio equipment.

IC Role / Device Role / Timing Role: Dual op-amps (AMP1/AMP2) configured as non-inverting gain-of-2 stages; AMP3/AMP4 unused or in standby.

Use Value: 4.2 nV/√Hz noise and 0.01% THD deliver audiophile-grade SNR (>95 dB) without requiring external filtering.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad high-speed op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMH6644MA/NOPB	Higher supply current (6.5 mA/amp), no standby function, 220 MHz GBW	Superior bandwidth but lacks power-gating - unsuitable for battery-powered or thermally constrained designs	Select when maximum speed (≥200 MHz) is required and standby is unnecessary
THS4031DR	Single-channel, 100 MHz GBW, 300 V/µs slew rate, no standby	Requires four separate packages for quad functionality - increases PCB area and assembly cost	Select only for discrete channel optimization where layout isolation outweighs integration benefits

Compared with LMH6644MA/NOPB and THS4031DR, the TSH94ID uniquely combines quad integration, dual standby control, and broadcast-grade video specs in a single SO-16 package - reducing system power by up to 9 mA versus four discrete amps while maintaining sub-0.1° phase accuracy.

Availability

TSH94ID is available at Aetrix Electronics and suitable for set-top-boxes, TV video front-ends, and DVD player analog output stages requiring stable component supply across extended temperature ranges (−40°C to +125°C) and long production lifecycles.

Supply support for TSH94ID includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog products for automotive, industrial, and consumer markets.

The TSH94ID belongs to ST's high-speed precision op-amp product line, engineered specifically for broadcast-quality analog video signal conditioning - balancing speed, power efficiency, and video fidelity in cost-sensitive consumer electronics.

FAQ

What is the minimum recommended supply voltage for TSH94ID in dual-rail configuration?

The TSH94ID operates over a total supply range of 7 V to 12 V (e.g., ±3.5 V to ±6 V). For dual-rail use, the absolute minimum is ±3.5 V (7 V total), verified in Table 2 of the datasheet. Below this, output swing and slew rate degrade significantly - e.g., at ±3 V, GBP drops to 90 MHz and SR falls below 70 V/µs.

Can TSH94ID drive a 75 Ω coaxial cable directly without external series resistance?

No. The TSH94ID is specified for 600 Ω and 150 Ω loads only. Driving 75 Ω directly risks instability and excessive current draw (exceeding ±40 mA short-circuit limit). A 68 Ω series resistor must be added at the output to match 75 Ω impedance and maintain video performance (differential gain/phase).

How does the STANDBY pin logic level interface with standard 3.3 V GPIO controllers?

STANDBY pins require V_STBY ≥ V_CC+ − 1.0 V (max threshold) to activate. With V_CC+ = +5 V, a 3.3 V GPIO output is insufficient (5 − 1.0 = 4.0 V required). A level-shifter or open-drain pull-up to V_CC+ is mandatory - direct 3.3 V connection results in undefined standby behavior.

Is TSH94ID pin-compatible with older TSH94 variants like TSH94IDT?

Yes. Both TSH94ID and TSH94IDT use identical SO-16 packaging and pinout per Figure 1 and Table 7. The only difference is packing method (tube vs. tape-and-reel); electrical specifications, thermal ratings, and standby functionality are identical across both order codes.

TSH94ID Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 110V/µs

Gain Bandwidth Product:: 150 MHz

-3db Bandwidth:: -

Current - Input Bias:: 5 µA

Voltage - Input Offset:: 3 mV

Current - Supply:: 4.5mA (x4 Channels)

Current - Output / Channel:: 40 mA

Voltage - Supply Span (Min):: 7 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SO

TSH94ID FAQ

1.How can I place an order for TSH94ID through Aetrix?

Please submit a Request for Quotation (RFQ) for TSH94ID on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TSH94ID reliable?

The price and inventory of TSH94ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSH94ID is usually 5 days.

3.What payment methods are accepted for TSH94ID?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSH94ID transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSH94ID?

TSH94ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSH94ID order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TSH94ID?

For technical support, including TSH94ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSH94ID requirements.

6.How does Aetrix verify that TSH94ID is sourced from the original manufacturer or authorized distributors?

All TSH94ID products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSH94ID meets industry standards.

7.What is the process for return or replacement of TSH94ID?

All TSH94ID units undergo pre-shipment inspection (PSI). If there is an issue with TSH94ID, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TSH94ID part is unused and in its original packaging.

Return procedure for TSH94ID:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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